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source 总是出现以下问题，描述的时候已经说了是接地的了啊，为什么还是会当作断开的呢？+ u3 e( x0 U& l
Circuit: *Main mtcoms file
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0 h$ w# q& ?% ~% {+ D: BWarning: There are nodes with less than 2 connections.' \: r3 v# B6 m; ^
The table of nodes with less than 2 connections is generated after sourcing...4 k9 |9 J& j, i
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***warning***: the following singular supplies were terminated to 1 meg resistor
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9 w" |; X8 U r* xsupply node1 node2
7 U; ^: S) |. c u% v+ j! k* ?vdd vdd 0
; p" j) a# q5 H, D6 f) |; gv1 a 03 Q2 y; o2 {* {' [& w
v2 b 0
8 ?2 P0 I$ k: E# C pv3 sl 0! U4 M Q1 `; E
! s3 A1 k1 B1 r) \$ I& r" ~* M/ |6 P& r
The following nodes have less than 2 connections:
* G! r% U7 R6 D* W" a$ [-------------------------------------------------------------------------------------1 G5 W3 p0 G6 }9 N3 r: X$ ?7 S
| sl | b | a | vdd |
3 Y6 Z- y2 b( _& t' K! l' `! h-------------------------------------------------------------------------------------. `8 e! H% V5 P- [& S7 v1 P
一个描述netlist的文件：
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* SPICE export by: S-Edit 15.13, N% c# B- B+ Y7 z- G! s3 M; ?0 U: N
* Export time: Tue Jun 12 11:15:52 2012 T1 N% |% |! R; I ^6 J) ^
* Design: mtcoms
7 z" r- O) C U4 _; ^) T* Cell: Cell0
/ y+ ]: M- K) I& q6 B6 w* Interface: VResistor
6 N; G, G5 d' k4 s( {0 _% J& S' i0 N" A* View: VResistor
/ {$ W- S6 Q* d$ w( T* View type: connectivity7 _7 t' J" _* P; a2 p+ ^/ u
* Export as: top-level cell8 F1 z2 J7 Q( e
* Export mode: hierarchical
; M, L; B9 J: w j* Exclude empty cells: no$ V2 [( i9 x* j% Z
* Exclude .model: yes
$ U4 g$ c- s1 U* S4 [& d, y* Exclude .end: no
1 Z+ d8 p& x, f. z# O; s- |! {/ e* Exclude simulator commands: no
2 J2 X3 ~, `. O# H E7 _* Expand paths: yes6 Y* s- @$ j8 u9 M
* Wrap lines: 80 characters1 T( V# T3 b+ z% a
* Root path: \\en-file\users\houx\Profile\Desktop\ankun_dong hw2\mtcoms
) O% q8 E9 k- W5 w3 h/ l* Exclude global pins: no
4 q% e5 u3 ~7 A) c T1 _8 y* Exclude instance locations: no% j, B) m+ I. l6 u/ B
* Control property name: SPICE
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5 q5 \$ t4 L3 ]********* Simulation Settings - General Section *********4 l0 W6 G; f; K2 v
$ A( P' o0 X, T N
*************** Subcircuits *****************
6 ]4 [7 b. D. c2 o* _4 Q; h.subckt INV A Out Gnd Vdd + U _2 Q5 Z* G& n+ m$ Q0 `; i
6 @9 K1 C. _* T. h! k2 W5 K*-------- Devices With SPICE.ORDER < 0.0 --------
6 Z; F q4 j: N* y3 f! c7 a E& S- j* Design: LogicGates / Cell: INV / View: Main / Page: & n, b" k( u5 H( U0 ^
* Designed by: Tanner EDA Library Development Team$ B3 O* _+ ^9 g1 d
* Organization: Tanner EDA - Tanner Research, Inc.$ n( R: D( X3 @+ y! x
* Info: Inverter* D3 E' n$ g3 p! g% m0 l% K) L
* Date: 06/13/07 16:17:11( F3 ?9 C: P# y* Y7 {' |9 G) K
* Revision: 3 $ $x=7600 $y=600 $w=3600 $h=1200* v w" N* r: l
3 A* ~* m" R+ a3 R1 ?0 Z# X% ]- m*-------- Devices With SPICE.ORDER > 0.0 --------! q: ?, h4 u' ~! E& O6 T% ]
MN1 Out A Gnd 0 NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=4600 $y=2600
* h8 j" D: W% \6 B4 n8 @+$w=400 $h=600 p- R1 q' x0 I7 H
MP1 Out A Vdd Vdd PMOS W=2.5u L=250n M=2 AS=1.5625p PS=3.75u AD=2.25p PD=6.8u $ - @4 _$ e% |& [$ Y
+$x=4600 $y=3600 $w=400 $h=600
5 ~* v% U# w |1 a5 I: _* z.ends9 F. C2 ~+ q3 C, B0 t# F) u1 Y
8 i6 `8 p; K3 [
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*-------- Devices With SPICE.ORDER == 0.0 --------* n h- ^$ k0 q, c. l; @
***** Top Level *****
* w) w7 E/ S- j' f2 K' j8 }XINV_1 SL N_2 Gnd Vdd INV $ $x=350 $y=-2300 $w=900 $h=6007 S! v7 e2 o1 @3 t
" f' x- N6 P: B% v: T [, F# O p*-------- Devices With SPICE.ORDER > 0.0 --------/ N* Z H0 P2 j- Z8 a
CCapacitor_1 VDDV Gnd 1p $ $x=3100 $y=-400 $w=400 $h=600- |# c) F' ^5 |! X, v. z B
CCapacitor_2 GNDV Gnd 1p $ $x=3100 $y=-2500 $w=400 $h=600
. E+ h3 m9 w/ n. X3 ~* Q' y! AMNMOS_1 Out A N_1 N_1 NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1100
7 u6 @2 ^6 g: U+$y=-800 $w=400 $h=600
9 h- M K4 b3 p8 o; v. @MNMOS_2 N_1 B GNDV GNDV NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1100 % f( y* W8 u5 k* i
+$y=-1500 $w=400 $h=600
p+ P0 a2 S; @" PMNMOS_3 GNDV N_2 Gnd Gnd NMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $
4 J/ O, S* r, [4 `7 W+$x=1100 $y=-2300 $w=400 $h=600; s l+ a5 _, Q
MPMOS_1 Out A VDDV VDDV PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=300
* a( b$ `( p* ~1 C& h+$y=-200 $w=400 $h=600 Z; g/ {/ f( Y E5 |) [
MPMOS_2 Out B VDDV VDDV PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1900 * X) U* {3 y+ l
+$y=-200 $w=400 $h=600, Q+ z8 @0 U9 x4 X8 n* ~
MPMOS_3 VDDV SL Vdd Vdd PMOS W=2.5u L=250n AS=2.25p PS=6.8u AD=2.25p PD=6.8u $ $x=1100 4 o* K5 @+ l$ U9 U- \
+$y=700 $w=400 $h=600! F, y- Q; U; D4 z1 g" H
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********* Simulation Settings - Analysis Section *********; z" ^4 P, W# `- p# E
.op
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% i: d" n* G! o0 ?1 I1 B) J$ M) R********* Simulation Settings - Additional SPICE Commands *********
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7 ]& s) r, l( a/ s.end
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发表于 2012-6-13 02:27
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发表于 2012-6-19 11:03